Pinch training and lifting is used to strengthen the thumb for climbing. This model is designed with four pinch sizes: 100mm, 60mm, 40mm, 20mm. The original model includes various lifting edges to make a multipurpose tool, but I already have several lifting edge blocks. Taking the edges out gives a more compact model.

The model is provided with modifier geometry to enable fuzzy skin on certain surfaces. To load this geometry in Prusa Slicer, load the printable model then add the modifier geometry to the printable model (right click on the model in the list, add modifier geometry, load...). This correctly aligns the two models automatically.